Has your Galaxy J7 mysteriously died after refusing to charge? In many instances, a problem like this is caused by bad hardware, which means that repair or replacement may be necessary to fix it. Don’t worry though as sometimes, software may also be to blame. Learn how to troubleshoot for software-related causes below.
Problem: Galaxy J7 stopped charging (no charging icon and won’t turn on)
I keep my phone well optimized by occasionally cleaning cache and restarting it from time to time. And recently I’ve tried to charge my phone, but I’ve noticed the battery kept draining even while I was charging it. I didn’t think much of it because it’s happened before, either it slowly charges or doesn’t charge at all. Only this time is different because it drained all the way to 0%. So then I tried leaving it to charge and it would show the charging icon but there was never any progress apart from the moment I noticed it charged 1% when I pressed the home button, but the battery drained again. Lately, it doesn’t even show the charging icon anymore, it’s just a black screen. I press the home button and power button but nothing comes up it’s like dead for real.
I know it’s not the power outlets or the charger itself because it works well with other phones. I’ve kept my Samsung J7 updated to its latest system update so I don’t know what’s wrong with it. It’s been a day since it’s been like this. I’ve thought about just waiting it out since that’s what I did last time. My phone wouldn’t charge for a period of time and then it would start working again. Anyhow I’m a bit concerned please answer this when you can.
Solution: There’s a number of possible reasons for an issue like this. We understand you’ve already tried some of the troubleshooting steps so below are the ones that you want to do further find out where the problem lies.
Use another set of charging accessories
For an issue like yours, we insist that you try a different known working J7 cable and adapter. Even a slight difference in amount of energy being transferred during charging can change how some device behaves while charging. Samsung’s charging cable is composed of hundreds of tiny wires inside. Overtime, these wires may become damaged or disconnected causing a disruption or lack of amperes while charging. This can cause charging disruptions or a full stop to charging. If possible, you want to get a new official charging cable and adapter to test this out. If you don’t want to shell out for a new set of charging accessories, visit your local Samsung store and use their own J7 cable and adapter.
Calibrate the battery
This troubleshooting step only applies if you can get the phone charged. This requires that the battery is fully topped up so simply skip it if that’s not possible. Remember, the aim of this troubleshooting step is to help the Operating System detect the correct battery levels again. After some time, Android may lose track of battery power causing erratic boot behaviors.
Here are the steps to calibrate the battery:
- Drain the battery completely. This means using your device until it powers down by its own and the battery level reads 0%.
- Charge the phone until it reaches 100%. Be sure to use original charging equipment for your device and let it charge up completely. Do not unplug your device for at least two more hours and also don’t use it while charging.
- After the elapsed time, unplug your device.
- Restart the device.
- Use your phone until it completely runs out of power again.
- Repeat steps 1-5.
Charge while on Safe Mode
While rare, sometimes, a downloaded app may interfere with Android and cause problems. To check if there’s an app problem, try to restart the device to Safe Mode before charging it. Here’s how:
- Charge the device for at least 30 minutes. This is to give the battery a boost.
- Turn the device off.
- Press and hold the Power key past the model name screen.
- When “SAMSUNG” appears on the screen, release the Power key.
- Immediately after releasing the Power key, press and hold the Volume down key.
- Continue to hold the Volume down key until the device finishes restarting.
- Safe mode will display in the bottom left corner of the screen.
- Release the Volume down key when you see Safe Mode.
- If you are able to restart the device successfully to Safe Mode, charge it again until the battery reaches 100%.
If your device y appears to work properly on safe mode but not on normal mode, that means a third party app is causing it. To identify which of your apps is causing the trouble, you should boot the phone back to safe mode and follow these steps:
- Boot to safe mode.
- Check for the problem.
- Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
- After you uninstall an app, restart the phone to normal mode and check for the problem.
- If your J7 is still problematic, repeat steps 1-4.
Revert software defaults
To know if an app or software bug is preventing the device from charging, you may eventually need to wipe it and return its software to its defaults. If the phone won’t turn on and you can’t access its Settings menu, then you can try to see if you can wipe it via Recovery Mode. Below are the two ways to factory reset your Galaxy J7.
Factory reset via Settings
- From the Home screen, tap the Apps icon.
- Tap Settings.
- Tap Backup and reset.
- If desired, tap Back up my data to move the slider to ON or OFF.
- If desired, tap Restore to move the slider to ON or OFF.
- Tap Factory data reset.
- Tap Reset device.
- If you have screen lock turned on, enter your PIN or password.
- Tap Continue.
- Tap Delete all.
Factory reset via Recovery Mode (master reset)
- Turn off the device.
- Press and hold the Volume Up key and the Home key, then press and hold the Power key.
- When the device logo screen displays, release only the Power key
- When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
- Press the Volume down key several times key to highlight ‘wipe data / factory reset.’
- Press Power button to select.
- Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
- Press Power button to select and start the master reset.
- When the master reset is complete, ‘Reboot system now’ is highlighted.
- Press the Power key to restart the device.
Replace the battery
The last troubleshooting step that you can do on your end is to replace the battery. This is easily done since the Galaxy J7 has a removable battery. Make sure to get a battery from official Samsung stores.
Send the phone in
Should nothing work at this point, you can assume that the problem is not fixable on your end. Contact Samsung for repair or replacement.